include/instrumentation/syscalls/x86-32-syscalls_pointers_override.h

   1 /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) */
   2
   3 #ifndef CREATE_SYSCALL_TABLE
   4
   5 # ifndef CONFIG_UID16
   6 #  define OVERRIDE_32_getgroups16
   7 #  define OVERRIDE_32_setgroups16
   8 #  define OVERRIDE_32_lchown16
   9 #  define OVERRIDE_32_getresuid16
  10 #  define OVERRIDE_32_getresgid16
  11 #  define OVERRIDE_32_chown16
  12 # endif
  13
  14 #ifdef CONFIG_X86_64
  15 #ifdef CONFIG_COMPAT_OLD_SIGACTION
  16 /*
  17  * From the point of view of the 64-bit ABI, old_sigaction
  18  * becomes compat_old_sigaction.
  19  */
  20 #define old_sigaction compat_old_sigaction
  21 #else /* CONFIG_COMPAT_OLD_SIGACTION */
  22 /*
  23  * The target 64-bit kernel does not enable the support for
  24  * the 32-bit compat version of OLD_SIGACTION. Defining
  25  * OVERRIDE_32_sigaction ensures we don't build a tracepoint
  26  * for this syscall.
  27  */
  28 #define OVERRIDE_32_sigaction
  29 #endif /* CONFIG_COMPAT_OLD_SIGACTION */
  30 #endif
  31
  32 /*
  33  * Override 'pipe' to set the output field 'fildes' to an array of 2 integers
  34  * instead of the default integer pointer.
  35  */
  36 #define OVERRIDE_32_pipe
  37 #define OVERRIDE_64_pipe
  38 SC_LTTNG_TRACEPOINT_EVENT(pipe,
  39     TP_PROTO(sc_exit(long ret,) int * fildes),
  40     TP_ARGS(sc_exit(ret,) fildes),
  41     TP_FIELDS(sc_exit(ctf_integer(long, ret, ret))
  42         sc_out(ctf_user_array(int, fildes, fildes, 2))
  43     )
  44 )
  45
  46 #else   /* CREATE_SYSCALL_TABLE */
  47
  48 # ifndef CONFIG_UID16
  49 #  define OVERRIDE_TABLE_32_getgroups16
  50 #  define OVERRIDE_TABLE_32_setgroups16
  51 #  define OVERRIDE_TABLE_32_lchown16
  52 #  define OVERRIDE_TABLE_32_getresuid16
  53 #  define OVERRIDE_TABLE_32_getresgid16
  54 #  define OVERRIDE_TABLE_32_chown16
  55 # endif
  56
  57 #define OVERRIDE_TABLE_32_execve
  58 TRACE_SYSCALL_TABLE(execve, execve, 11, 3)
  59 #define OVERRIDE_TABLE_32_clone
  60 TRACE_SYSCALL_TABLE(clone, clone, 120, 5)
  61 #define OVERRIDE_TABLE_32_getcpu
  62 TRACE_SYSCALL_TABLE(getcpu, getcpu, 318, 3)
  63
  64 #endif /* CREATE_SYSCALL_TABLE */
  65
  66